./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35ec611011aa6867bf0bb36080e273ba993b072e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:41:32,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:41:32,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:41:32,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:41:32,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:41:32,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:41:32,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:41:32,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:41:32,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:41:32,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:41:32,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:41:32,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:41:32,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:41:32,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:41:32,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:41:32,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:41:32,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:41:32,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:41:32,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:41:32,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:41:32,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:41:32,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:41:32,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:41:32,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:41:32,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:41:32,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:41:32,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:41:32,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:41:32,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:41:32,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:41:32,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:41:32,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:41:32,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:41:32,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:41:32,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:41:32,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:41:32,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:41:32,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:41:32,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:41:32,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:41:32,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:41:32,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:41:32,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:41:32,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:41:32,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:41:32,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:41:32,432 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:41:32,433 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:41:32,433 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:41:32,433 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:41:32,433 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:41:32,434 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:41:32,434 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:41:32,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:41:32,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:41:32,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:41:32,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:41:32,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:41:32,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:41:32,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:41:32,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:41:32,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:41:32,437 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:41:32,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:41:32,438 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:41:32,438 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:41:32,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:41:32,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:41:32,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:41:32,439 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:41:32,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:41:32,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:41:32,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:41:32,440 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:41:32,441 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:41:32,442 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35ec611011aa6867bf0bb36080e273ba993b072e [2020-07-29 02:41:32,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:41:32,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:41:32,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:41:32,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:41:32,837 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:41:32,838 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-07-29 02:41:32,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2283b1ab4/8ed6442a0ef0435aad63e86ab2fe6b6a/FLAG62fede271 [2020-07-29 02:41:33,434 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:41:33,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-07-29 02:41:33,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2283b1ab4/8ed6442a0ef0435aad63e86ab2fe6b6a/FLAG62fede271 [2020-07-29 02:41:33,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2283b1ab4/8ed6442a0ef0435aad63e86ab2fe6b6a [2020-07-29 02:41:33,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:41:33,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:41:33,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:41:33,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:41:33,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:41:33,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:41:33" (1/1) ... [2020-07-29 02:41:33,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed744bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:33, skipping insertion in model container [2020-07-29 02:41:33,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:41:33" (1/1) ... [2020-07-29 02:41:33,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:41:33,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:41:34,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:41:34,236 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:41:34,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:41:34,378 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:41:34,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34 WrapperNode [2020-07-29 02:41:34,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:41:34,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:41:34,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:41:34,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:41:34,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:41:34,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:41:34,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:41:34,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:41:34,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... [2020-07-29 02:41:34,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:41:34,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:41:34,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:41:34,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:41:34,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:41:34,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:41:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:41:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:41:34,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:41:35,967 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:41:35,968 INFO L295 CfgBuilder]: Removed 102 assume(true) statements. [2020-07-29 02:41:35,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:41:35 BoogieIcfgContainer [2020-07-29 02:41:35,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:41:35,975 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:41:35,975 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:41:35,979 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:41:35,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:41:35,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:41:33" (1/3) ... [2020-07-29 02:41:35,982 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cbc190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:41:35, skipping insertion in model container [2020-07-29 02:41:35,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:41:35,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:41:34" (2/3) ... [2020-07-29 02:41:35,984 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cbc190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:41:35, skipping insertion in model container [2020-07-29 02:41:35,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:41:35,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:41:35" (3/3) ... [2020-07-29 02:41:35,986 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-07-29 02:41:36,041 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:41:36,042 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:41:36,042 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:41:36,042 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:41:36,043 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:41:36,043 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:41:36,044 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:41:36,044 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:41:36,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2020-07-29 02:41:36,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-07-29 02:41:36,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:36,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:36,120 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:36,120 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:36,120 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:41:36,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2020-07-29 02:41:36,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-07-29 02:41:36,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:36,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:36,134 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:36,134 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:36,142 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 11#L-1true havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 51#L151true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 67#L159true main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 73#L258true assume 0 != main_~tmp~0; 26#L234true havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 61#L441-1true [2020-07-29 02:41:36,143 INFO L796 eck$LassoCheckResult]: Loop: 61#L441-1true assume !false; 6#L471true assume test_~splverifierCounter~0 < 4; 21#L472true test_~tmp~4 := test_#t~nondet34;havoc test_#t~nondet34; 41#L480true assume !(0 != test_~tmp~4); 43#L480-1true test_~tmp___0~1 := test_#t~nondet35;havoc test_#t~nondet35; 23#L490true assume !(0 != test_~tmp___0~1); 12#L490-1true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 68#L500true assume 0 != test_~tmp___2~0; 38#L506-2true assume !(0 != ~pumpRunning~0); 39#L283true assume !(0 != ~systemActive~0); 53#L290true havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 54#L89-1true __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 13#L435true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 61#L441-1true [2020-07-29 02:41:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:36,151 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:41:36,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:36,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534019078] [2020-07-29 02:41:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:36,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:36,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:36,584 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:36,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:36,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899275, now seen corresponding path program 1 times [2020-07-29 02:41:36,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:36,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366466231] [2020-07-29 02:41:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:36,616 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:36,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:36,636 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:36,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:36,644 INFO L82 PathProgramCache]: Analyzing trace with hash 32379663, now seen corresponding path program 1 times [2020-07-29 02:41:36,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:36,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819688120] [2020-07-29 02:41:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:41:36,889 INFO L280 TraceCheckUtils]: 0: Hoare triple {80#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {82#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:41:36,891 INFO L280 TraceCheckUtils]: 1: Hoare triple {82#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; {82#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:41:36,892 INFO L280 TraceCheckUtils]: 2: Hoare triple {82#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; {83#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-29 02:41:36,893 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; {84#(= ULTIMATE.start_main_~tmp~0 ~systemActive~0)} is VALID [2020-07-29 02:41:36,894 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#(= ULTIMATE.start_main_~tmp~0 ~systemActive~0)} assume 0 != main_~tmp~0; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,896 INFO L280 TraceCheckUtils]: 5: Hoare triple {85#(not (= 0 ~systemActive~0))} havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,897 INFO L280 TraceCheckUtils]: 6: Hoare triple {85#(not (= 0 ~systemActive~0))} assume !false; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,898 INFO L280 TraceCheckUtils]: 7: Hoare triple {85#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,899 INFO L280 TraceCheckUtils]: 8: Hoare triple {85#(not (= 0 ~systemActive~0))} test_~tmp~4 := test_#t~nondet34;havoc test_#t~nondet34; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,900 INFO L280 TraceCheckUtils]: 9: Hoare triple {85#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4); {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,901 INFO L280 TraceCheckUtils]: 10: Hoare triple {85#(not (= 0 ~systemActive~0))} test_~tmp___0~1 := test_#t~nondet35;havoc test_#t~nondet35; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,902 INFO L280 TraceCheckUtils]: 11: Hoare triple {85#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1); {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,903 INFO L280 TraceCheckUtils]: 12: Hoare triple {85#(not (= 0 ~systemActive~0))} test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,904 INFO L280 TraceCheckUtils]: 13: Hoare triple {85#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,905 INFO L280 TraceCheckUtils]: 14: Hoare triple {85#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {85#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:41:36,906 INFO L280 TraceCheckUtils]: 15: Hoare triple {85#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {81#false} is VALID [2020-07-29 02:41:36,906 INFO L280 TraceCheckUtils]: 16: Hoare triple {81#false} havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {81#false} is VALID [2020-07-29 02:41:36,907 INFO L280 TraceCheckUtils]: 17: Hoare triple {81#false} __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; {81#false} is VALID [2020-07-29 02:41:36,907 INFO L280 TraceCheckUtils]: 18: Hoare triple {81#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; {81#false} is VALID [2020-07-29 02:41:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:41:36,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819688120] [2020-07-29 02:41:36,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:41:36,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 02:41:36,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543201897] [2020-07-29 02:41:37,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:41:37,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-29 02:41:37,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-29 02:41:37,041 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 6 states. [2020-07-29 02:41:37,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:37,876 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2020-07-29 02:41:37,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-29 02:41:37,880 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 02:41:37,926 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:41:37,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2020-07-29 02:41:37,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-07-29 02:41:37,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2020-07-29 02:41:37,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2020-07-29 02:41:37,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2020-07-29 02:41:37,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2020-07-29 02:41:37,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:41:37,963 INFO L688 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-07-29 02:41:37,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2020-07-29 02:41:38,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-07-29 02:41:38,008 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:41:38,009 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states and 90 transitions. Second operand 65 states. [2020-07-29 02:41:38,010 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states and 90 transitions. Second operand 65 states. [2020-07-29 02:41:38,012 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 65 states. [2020-07-29 02:41:38,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:38,028 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2020-07-29 02:41:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2020-07-29 02:41:38,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:38,031 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:38,032 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 65 states and 90 transitions. [2020-07-29 02:41:38,032 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 65 states and 90 transitions. [2020-07-29 02:41:38,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:38,037 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2020-07-29 02:41:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2020-07-29 02:41:38,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:38,038 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:38,038 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:41:38,039 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:41:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-07-29 02:41:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2020-07-29 02:41:38,044 INFO L711 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-07-29 02:41:38,044 INFO L591 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-07-29 02:41:38,045 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:41:38,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2020-07-29 02:41:38,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-07-29 02:41:38,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:38,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:38,048 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:38,048 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:38,048 INFO L794 eck$LassoCheckResult]: Stem: 200#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 173#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 174#L151 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 222#L159 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 226#L258 assume 0 != main_~tmp~0; 198#L234 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 178#L441-1 [2020-07-29 02:41:38,049 INFO L796 eck$LassoCheckResult]: Loop: 178#L441-1 assume !false; 166#L471 assume test_~splverifierCounter~0 < 4; 167#L472 test_~tmp~4 := test_#t~nondet34;havoc test_#t~nondet34; 191#L480 assume !(0 != test_~tmp~4); 217#L480-1 test_~tmp___0~1 := test_#t~nondet35;havoc test_#t~nondet35; 194#L490 assume !(0 != test_~tmp___0~1); 175#L490-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 176#L500 assume 0 != test_~tmp___2~0; 211#L506-2 assume !(0 != ~pumpRunning~0); 197#L283 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 203#L315 assume !(0 != ~pumpRunning~0); 204#L290 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 223#L89-1 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 177#L435 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 178#L441-1 [2020-07-29 02:41:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:38,050 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:41:38,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:38,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417552861] [2020-07-29 02:41:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,097 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,185 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:38,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:38,187 INFO L82 PathProgramCache]: Analyzing trace with hash -619797874, now seen corresponding path program 1 times [2020-07-29 02:41:38,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:38,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156054311] [2020-07-29 02:41:38,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:38,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:38,219 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:38,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:38,223 INFO L82 PathProgramCache]: Analyzing trace with hash 983241652, now seen corresponding path program 1 times [2020-07-29 02:41:38,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:38,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467271887] [2020-07-29 02:41:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:41:38,441 INFO L280 TraceCheckUtils]: 0: Hoare triple {364#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,442 INFO L280 TraceCheckUtils]: 1: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,443 INFO L280 TraceCheckUtils]: 2: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,445 INFO L280 TraceCheckUtils]: 3: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,446 INFO L280 TraceCheckUtils]: 4: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != main_~tmp~0; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,447 INFO L280 TraceCheckUtils]: 5: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,448 INFO L280 TraceCheckUtils]: 6: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !false; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,449 INFO L280 TraceCheckUtils]: 7: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume test_~splverifierCounter~0 < 4; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,450 INFO L280 TraceCheckUtils]: 8: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} test_~tmp~4 := test_#t~nondet34;havoc test_#t~nondet34; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,451 INFO L280 TraceCheckUtils]: 9: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != test_~tmp~4); {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,452 INFO L280 TraceCheckUtils]: 10: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} test_~tmp___0~1 := test_#t~nondet35;havoc test_#t~nondet35; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,453 INFO L280 TraceCheckUtils]: 11: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != test_~tmp___0~1); {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,454 INFO L280 TraceCheckUtils]: 12: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,455 INFO L280 TraceCheckUtils]: 13: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != test_~tmp___2~0; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,456 INFO L280 TraceCheckUtils]: 14: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != ~pumpRunning~0); {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,457 INFO L280 TraceCheckUtils]: 15: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,458 INFO L280 TraceCheckUtils]: 16: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != ~pumpRunning~0); {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-29 02:41:38,459 INFO L280 TraceCheckUtils]: 17: Hoare triple {366#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {367#(and (<= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (<= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} is VALID [2020-07-29 02:41:38,460 INFO L280 TraceCheckUtils]: 18: Hoare triple {367#(and (<= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (<= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; {368#(and (<= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 0) (<= 0 ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3))} is VALID [2020-07-29 02:41:38,461 INFO L280 TraceCheckUtils]: 19: Hoare triple {368#(and (<= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 0) (<= 0 ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3))} assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; {365#false} is VALID [2020-07-29 02:41:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:41:38,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467271887] [2020-07-29 02:41:38,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:41:38,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:41:38,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741370922] [2020-07-29 02:41:38,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:41:38,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-29 02:41:38,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-29 02:41:38,541 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. cyclomatic complexity: 27 Second operand 5 states. [2020-07-29 02:41:39,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:39,648 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2020-07-29 02:41:39,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-29 02:41:39,649 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-29 02:41:39,690 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:41:39,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 300 transitions. [2020-07-29 02:41:39,708 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2020-07-29 02:41:39,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 300 transitions. [2020-07-29 02:41:39,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2020-07-29 02:41:39,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2020-07-29 02:41:39,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 300 transitions. [2020-07-29 02:41:39,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:41:39,725 INFO L688 BuchiCegarLoop]: Abstraction has 211 states and 300 transitions. [2020-07-29 02:41:39,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 300 transitions. [2020-07-29 02:41:39,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 124. [2020-07-29 02:41:39,737 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:41:39,737 INFO L82 GeneralOperation]: Start isEquivalent. First operand 211 states and 300 transitions. Second operand 124 states. [2020-07-29 02:41:39,738 INFO L74 IsIncluded]: Start isIncluded. First operand 211 states and 300 transitions. Second operand 124 states. [2020-07-29 02:41:39,738 INFO L87 Difference]: Start difference. First operand 211 states and 300 transitions. Second operand 124 states. [2020-07-29 02:41:39,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:39,752 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2020-07-29 02:41:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 300 transitions. [2020-07-29 02:41:39,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:39,755 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:39,755 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 211 states and 300 transitions. [2020-07-29 02:41:39,755 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 211 states and 300 transitions. [2020-07-29 02:41:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:41:39,769 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2020-07-29 02:41:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 300 transitions. [2020-07-29 02:41:39,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:41:39,771 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:41:39,771 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:41:39,772 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:41:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-29 02:41:39,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2020-07-29 02:41:39,778 INFO L711 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-07-29 02:41:39,778 INFO L591 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-07-29 02:41:39,778 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:41:39,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 170 transitions. [2020-07-29 02:41:39,780 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2020-07-29 02:41:39,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:41:39,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:41:39,781 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:41:39,781 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:41:39,782 INFO L794 eck$LassoCheckResult]: Stem: 627#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 599#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 600#L151 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 656#L159 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 670#L258 assume 0 != main_~tmp~0; 623#L234 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 624#L441-1 [2020-07-29 02:41:39,782 INFO L796 eck$LassoCheckResult]: Loop: 624#L441-1 assume !false; 594#L471 assume test_~splverifierCounter~0 < 4; 595#L472 test_~tmp~4 := test_#t~nondet34;havoc test_#t~nondet34; 615#L480 assume !(0 != test_~tmp~4); 710#L480-1 test_~tmp___0~1 := test_#t~nondet35;havoc test_#t~nondet35; 618#L490 assume !(0 != test_~tmp___0~1); 601#L490-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 602#L500 assume 0 != test_~tmp___2~0; 638#L506-2 assume !(0 != ~pumpRunning~0); 620#L283 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 630#L315 assume !(0 != ~pumpRunning~0); 631#L290 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 658#L89-1 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 603#L435 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 604#L121 __utac_acc__Specification3_spec__1_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 637#L441 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 624#L441-1 [2020-07-29 02:41:39,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:39,783 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-07-29 02:41:39,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:39,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908251625] [2020-07-29 02:41:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:39,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:39,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:39,893 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:39,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:39,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1374702912, now seen corresponding path program 1 times [2020-07-29 02:41:39,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:39,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670899927] [2020-07-29 02:41:39,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:39,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:39,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:39,921 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:41:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:41:39,922 INFO L82 PathProgramCache]: Analyzing trace with hash 2428134, now seen corresponding path program 1 times [2020-07-29 02:41:39,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:41:39,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130615160] [2020-07-29 02:41:39,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:41:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:39,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:41:40,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:41:40,044 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:42:29,399 WARN L193 SmtUtils]: Spent 49.25 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:43:07,510 WARN L193 SmtUtils]: Spent 37.84 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:43:07,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:43:07 BoogieIcfgContainer [2020-07-29 02:43:07,772 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:43:07,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:43:07,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:43:07,773 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:43:07,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:41:35" (3/4) ... [2020-07-29 02:43:07,777 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:43:07,844 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:43:07,844 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:43:07,847 INFO L168 Benchmark]: Toolchain (without parser) took 94182.57 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 340.3 MB). Free memory was 961.6 MB in the beginning and 1.3 GB in the end (delta: -345.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:43:07,848 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:43:07,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:07,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:43:07,856 INFO L168 Benchmark]: Boogie Preprocessor took 47.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:07,857 INFO L168 Benchmark]: RCFGBuilder took 1460.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.0 MB in the end (delta: 120.1 MB). Peak memory consumption was 120.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:07,859 INFO L168 Benchmark]: BuchiAutomizer took 91797.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 206.0 MB). Free memory was 981.0 MB in the beginning and 1.3 GB in the end (delta: -336.3 MB). Peak memory consumption was 339.4 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:07,859 INFO L168 Benchmark]: Witness Printer took 71.72 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:43:07,864 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 713.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1460.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.0 MB in the end (delta: 120.1 MB). Peak memory consumption was 120.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 91797.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 206.0 MB). Free memory was 981.0 MB in the beginning and 1.3 GB in the end (delta: -336.3 MB). Peak memory consumption was 339.4 MB. Max. memory is 11.5 GB. * Witness Printer took 71.72 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 124 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 91.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 89.2s. Construction of modules took 0.3s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 87 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 124 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 202 SDtfs, 587 SDslu, 327 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 470]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12199} State at position 1 is {NULL=0, retValue_acc=0, NULL=12208, NULL=12199, retValue_acc=0, NULL=12204, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f633ab4=0, NULL=12210, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76b72bdb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@601cfb9c=0, NULL=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c39fc28=0, NULL=0, NULL=12224, NULL=0, tmp___1=0, tmp___0=1, NULL=12212, NULL=12203, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@282d4688=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22f8645a=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1012e572=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@741c62d1=0, NULL=0, systemActive=1, waterLevel=1, NULL=12223, \result=1, NULL=0, NULL=12219, NULL=12217, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=12218, head=0, pumpRunning=0, tmp=1, NULL=12201, \result=0, NULL=12206, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=12216, NULL=12202, NULL=12213, NULL=12220, tmp___2=53, NULL=12211, tmp___0=0, NULL=12209, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c795e2f=0, \result=0, NULL=12222, NULL=12215, NULL=12205, tmp=0, tmp___1=0, head=0, NULL=0, NULL=0, NULL=12214, NULL=0, NULL=0, NULL=12221, NULL=12207, NULL=0, NULL=12200} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 Loop: [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND FALSE !(\read(tmp)) [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] tmp___0 = getWaterLevel() [L441] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...